Method for radio-electronic destruction of conflict-resistant radio-electronic equipment

FIELD: radio electronics.

SUBSTANCE: invention relates to method for combating radio-electronic systems and can be used for active counteraction to conflict-resistant (CR) radio-electronic equipment (REE). Said result is achieved due to the fact, method for radio-electronic destruction of REE CR includes reception of signals by phased antenna array (PAA), emitted by destructed REE CR, detection of received signals, determination of their arrival direction, repetition period and range to destructed REE CR, PAA radiation of interfering ultra-high frequency signals (microwave signals) in the direction of destructed REE CR with delay of each interference microwave signal relative to the arrival of signal emitted by destructed REE CR, control over the process of signal emission from destructed REE CR, given that before radiation of interference microwave signals one performs probing of arrival direction for signals, emitted by destructed REE CR with the help of pilot signal on frequency of interfering microwave signal radiation, receives pilot signal, reflected by destructed REE CR and measures amplitude-phase distribution (APD), formed at PAA elements, further at the moments of time tn equal to , where T - period of receiving signals form destructed REE CR; Rn – distance from destructed REE CR to n-element of PAA; c – speed of light, each n-th element of PAA in the direction of destructed REE CR emitting interference microwave signals with initial phase, which is equal to complex-conjugated value of measured APD on n-th element of PAA.

EFFECT: achieved technical result – increased efficiency.

1 cl, 2 dwg

 



 

Same patents:

FIELD: information technology.

SUBSTANCE: method is performed by using the principle of masking the side electromagnetic radiation and leakage (SEMRL) of the main tablet computer similar to false SEMRL of the second tablet computer, the identical false SEMRL inseparable from the main SEMRL are created, masking the operation of the main tablet computer. At that the main and the additional tablet computer completely identical in hardware components and internal topology are used. The additional tablet computer is located with its screen under the bottom of the main tablet computer in parallel and symmetrically on the same-name sides without mutual touching at a distance of less than a quarter of the wavelength of oscillation of the same processor speed.

EFFECT: providing protection of the tablet computer from information leakage without the use of a noise generator.

FIELD: physics.

SUBSTANCE: device comprises electrical generator to develop noise signal connected to vibroexciter, inertial mass connected with vibroexciter. Vibroexciter is connected with the room noisy element. Note here that vibroexciter is pressed directly to said room noisy element while counterweight is pressed directly to vibroexciter, both being pressed by resilient clip to noisy element. Second end of resilient clip is secured at fixed or noisy element. Besides, said counterweight has limiting ledges to retain said vibroexciter. Noise signal generator is integrated with counterweight while the device is provided with the set of replaceable vibroexciter clips, counterweights and their fasteners.

EFFECT: simplified design and attachment, higher efficiency and reliability.

4 cl, 5 dwg, 1 tbl

FIELD: physics, optics.

SUBSTANCE: protection device is designed to prevent unauthorised probing of protected segments of optical cable systems and networks for various purposes. Controlled neutralisation of probing radiation in an optical cable is carried out by raising the noise level to the information-bearing signal power level or higher using a fibre-optic noise generator. The fibre-optic noise generator is connected in the optical network (1) on a Mach-Zehnder interferometer scheme (1), which is formed by asymmetrically connected two coupling devices (5, 6). One arm of the interferometer includes the fibre-optic noise generator, formed by a fire-optic modulator (7) and a noise generator (8). Power supply (9) and control of the device is carried out on the protected optical network via a channel (10). The protection device (2) is connected to the optical network (1) by detachable or permanent connections (3, 4). The device does not affect light flux in a switched off state and, when turned on, has optical nonreciprocity on noise induced in transmitted signals.

EFFECT: high efficiency of protecting information using optical channel noise masking methods.

13 cl, 7 dwg

FIELD: instrumentation.

SUBSTANCE: offered invention relates to instrumentation and describes a method of detection and rejection of electronic devices illegally connected to the weighing-machine cable line. For implementation of the method the pre-measured readings of the weighing-machine at the pre-set fixed weight are compared with the nominal value of the pre-set fixed weight. In case of deviation of readings of the weighing-machine by a value exceeding the allowable error of the weighing-machine the weight measuring sensors and the secondary electronic equipment are disconnected from the cable communication line of the weighing-machine. Then to one of conductors of the cable communication line of the weighing-machine through the additional communication line a current sensor of and a voltage generator are connected. The voltage supplied by the voltage generator through the current sensor is increased until current step in the additional communication line, then these operations are repeated for all conductors of the cable communication line of the weighing-machine.

EFFECT: possibility of simultaneous detection and rejection of electronic devices illegally connected to the weighing-machine cable line.

1 dwg

FIELD: radio engineering, communication.

SUBSTANCE: method of jamming a communication network comprises receiving a radiation source signal at a common signalling channel frequency fcsc; detecting in each receiving cycle at the common signalling channel frequency fcsc the numbers of all subscribers participating in establishing current communication sessions, based on presence of adjacent receiving and transmitting frequencies of subscribers; determining, based on the obtained numbers and frequencies, the number of established communications with each detected network subscriber and jamming communication channels by generating interfering signals in the form of instructions to terminate communication sessions on behalf of the detected subscribers, the number of established communications of which is greater than or equal to two.

EFFECT: high efficiency of jamming a communication network by jamming subscribers which are communication equipment of control stations, equipment for interfacing with external networks or relaying signals.

1 dwg

FIELD: electricity.

SUBSTANCE: information hiding device comprises: a signal attenuation unit, two key memory units, a masking signal shaping unit, a subtracting unit, six adder units, four multiplier units, an information transfer device unit, a factor shaping unit, a divider unit.

EFFECT: improvement of security and accuracy of recovery of the secured signal.

8 dwg

FIELD: information technologies.

SUBSTANCE: method of secure information transmission based on addition of the secured signal and the signal being a function of the secured signal and the masking signal, differing by that, for the purpose of increase of hiding and accuracy of recovery of the secured signal, the stego-container containing two components is formed, for this purpose the first signal is allocated which is equal to a half of the secured signal, and the second signal equal to a difference of the value of the first key and the first signal, the first component of the container is defined by the first signal, to which the product of masking signal and the sum of value of the second key and the first signal is added, the second component of the container is defined by the second signal, to which the product of masking signal and the sum of value of the third key and the second signal is added, to recover the secured signal four coefficients are determined, the first coefficient is equal to the doubled sum of values of the first and third keys, the second coefficient is equal to the doubled value of the second key, the third coefficient is equal to the doubled product of values of the first and second keys, the fourth coefficient is equal to the sum of values of the second and third keys, the readings of the secured signal are found by adding of the third coefficient to the product of the first container components and the first coefficient, and subtracting the product of the second container components and the second coefficient, the obtained result is divided by the sum of the first and second components of the container and the fourth coefficient.

EFFECT: improvement of security and accuracy of recovery of the secured signal.

11 dwg

FIELD: radio engineering, communication.

SUBSTANCE: jamming method includes measuring coordinates of the characteristic location, determining the composition a global navigation satellite system (GNSS) orbital group used in a given area, and the number of operating satellites therein; simultaneously receiving navigation message signals from the operating satellites for all GNSS users in the given area; storing the received messages; distorting the navigation messages therein by delaying by different time intervals, after which a resultant interfering signal with distorted navigation messages is generated; synchronising the resultant interfering signal with signals of navigation messages of GNSS satellites; emitting the resultant interfering signal with power higher than that of legitimate signals of the GNSS satellites, wherein during prolonged operation, stored navigation messages are periodically updated. To generate the interfering signal, the method includes predetermining classes of GNSS users, accurately setting coordinates of false routes and traffic speed thereon for each class of GNSS users, and during operation, determining the class of GNSS users located in the given area, for each current moment in time ti and the corresponding jth point of the assigned false route with an interval Δt, Δt=ti-ti-1, calculating the required delay of navigation messages for each operating GNSS satellite.

EFFECT: prolonged concealed distortion of navigation parameters for radio navigators of a group of users located in a spatially limited but known area.

3 cl, 10 dwg

FIELD: radio engineering, communication.

SUBSTANCE: apparatus for protecting computers comprises: a printed-circuit board 14 with circuit components, power supply contacts of the apparatus for protecting computers 1 and 2, power supply contacts GShS 3 and 4, an output contact 1 GShS 5, an output contact 2 GShS 6, GShS7, a low frequency amplifier 8, a mid-frequency amplifier 9, a high frequency amplifier 10, a high-pass filter 11, an amplitude detector 12, an audio signalling device 13, an electrodynamic audio signal emitter 15, variable resistors R2, R3, R4, R5, separating capacitors C1, C2, C3, installed jumper contacts P1, P2, P3.

EFFECT: higher reliability of protecting information from unauthorised access and loss of information due to secondary electromagnetic radiations and stray pickup.

3 cl, 2 dwg, 1 tbl

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to radio engineering and specifically to electronic jamming of electronic equipment, particularly radio communication equipment with pseudo-random operating frequency adjustment, and can be used to jam shipborne and airborne radio communication equipment. The electronic jamming system comprises airborne receiving antenna, input microwave amplifier, microwave splitter, amplitude detector, probing signal analysis unit, interference former, microwave switch, power amplifier and transmitting antenna, carrier frequency meter, phase-shift keying detector, memory unit, switching control signal, satellite radio navigation system signal receiver, device for determining coordinates of carriers of the transmitter and receiver of the jammed radio communication system and a computer.

EFFECT: high efficiency of electronic jamming and low requirements for energy potential of the system.

2 dwg

FIELD: radio-engineering, communication.

SUBSTANCE: under method of the space survey based on parameters change of the scanning signal during neighbouring periods, signals with parameters of the previous period are received, they are assumed as signals of repeater jamming and are used to receive features of this jamming that can be contained in set of the received signals with changed parameters. The result under first option is solved also such that as feature the angular coordinates of start and end of the spatial signals package created out of signals of the previous period. The result under first option is solved also such that as feature the angular coordinates of center of the spatial signals package created out of signals of the previous period. Result under second option is solved such that under the method of space survey based on the parameters change of the scanning signals of the neighbouring periods keep value of the carrying frequency and spectrum of the compressed signal. The result under second option is solved such that during use of the frequency modulation the frequency sequence is changed upon keeping of the frequency band. The result under second option is solved such that during use of signals with phase manipulation the law of phase manipulation is changed.

EFFECT: identification during the space survey of the repeater jamming at distances after jammer, and assurance of possibility of MTI system operation.

6 cl

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to means radio countermeasures used to secure facilities, armaments and military equipment. The multifunctional jamming station comprises: receiving and transmitting phased antenna arrays in the form of an M-element receiving-transmitting active phased antenna array, a beam-forming system in the form of a system of independent phase changers, a switching matrix having M inputs and N outputs, N high-frequency circulators, N receiving-transmitting channels comprising a radar signal detector, an adder, a switch, a radar signal former, a high-frequency module, a frequency determination system in the form of a radio signal detector and a jammer, as well as a system for determining the direction of arrival of input signals, an analysis and control system, an adder, a radar signal former and an analysis and control system.

EFFECT: high efficiency of the device by eliminating inefficient distribution of noise energy across the frequency range, providing radar detection and tracking on the direction of short-term radar stations with simultaneous electronic surveillance of radiations thereof and high throughput and efficient distribution of noise power in space.

1 dwg

FIELD: measurement equipment.

SUBSTANCE: prospecting module comprises a power supply system, a system for detection of radio engineering characteristics of sources of radio waves radiation, sensors of pressure, moisture and temperature, an altimeter, a device that stabilises flight and brakes decline, also comprises a parachute system, a system of parachute control, a system of optical survey, a navigation system, a self-liquidation system, a salvage system, a system of optical alarm of location, a system of control of a lowered prospecting module, a transceiving device. Listed facilities function in a certain manner within the prospecting module.

EFFECT: increased information value, quality of information, with the possibility of multiple use.

1 dwg

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to radio engineering and specifically to electronic jamming of electronic equipment, particularly radio communication equipment with pseudo-random operating frequency adjustment, and can be used to jam shipborne and airborne radio communication equipment. The electronic jamming system comprises airborne receiving antenna, input microwave amplifier, microwave splitter, amplitude detector, probing signal analysis unit, interference former, microwave switch, power amplifier and transmitting antenna, carrier frequency meter, phase-shift keying detector, memory unit, switching control signal, satellite radio navigation system signal receiver, device for determining coordinates of carriers of the transmitter and receiver of the jammed radio communication system and a computer.

EFFECT: high efficiency of electronic jamming and low requirements for energy potential of the system.

2 dwg

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to electronic warfare and can be used for radio suppression of global navigation satellite system (GNSS) navigation user equipment. The system for radio suppression of hostile GNSS navigation user equipment, which is compatible with local GNSS navigation user equipment, consists of multiple jamming transmitters with a known, but concealed from the opponent, structure of the emitted interfering signal intended for radio suppression of the hostile GNSS navigation user equipment and local GNSS navigation user equipment, having between the receiving antenna and the local GNSS navigation user equipment a compensator unit with series-arranged compensators. Each compensator consists of a generator for generating a pattern of the interfering signal emitted by the jammer, a correlator, a decision device, a controlled delay element, a controlled attenuator, a subtractor and has an input to which output voltage of the receiving antenna or previous compensator is applied, and an output from which the output voltage is applied to the input of the next compensator or local GNSS navigation user equipment. Within the compensator, input voltage is applied to the first input of the subtractor and the first input of the correlators, and at the second input a pattern of the compensated signal generated by the generator for generating a pattern of the interfering signal, emitted by the jammer, the decision device to the input of which a numerical matrix is transmitted form the output of the correlator, said matrix characterising the relationship between the cross-correlation coefficient of the compensated signal and its pattern, generated by a reference signal generator, from the alignment errors of the compensated signal and a pattern thereof on time and on Doppler frequency, which determines the position of the global maximum of the cross-correlation coefficient on time and frequency axes, and based on the obtained results, generating and transmitting a control instruction to a reference signal generator for alignment of the compensated signal and a pattern thereof on Doppler frequency, to the controlled delay element for alignment of the received signal with a pattern thereof on delay time and to the controlled attenuator for alignment of the received signal with a pattern thereof on amplitude. The subtractor eliminates an additive mixture of received useful and noise radio signals of a pattern of a compensated signal, said mixture being transmitted to one of the inputs of the subtractor from the receiving antenna or the output of the preceding compensator.

EFFECT: improved compatibility of local GNSS navigation user equipment with local jamming transmitters of GNSS navigation user equipment without reducing effectiveness of radio suppression of hostile GNSS navigation user equipment.

2 dwg

False target // 2538413

FIELD: physics.

SUBSTANCE: technical solution is based on forming a collapsible elastic envelope using a residual gas, said envelope being provided with cylindrical protrusions of different length which is a multiple of the wavelength in the wavelength range of the probing radar station. The protrusions are linked by one end to the inner volume of the envelope, and their other end is plugged and is the form of a hemisphere. In a collapsed state, the envelope is released from a launching apparatus mounted on spacecraft.

EFFECT: providing an optimum value of a reflected signal for effective identification of an object.

2 dwg

FIELD: physics, navigation.

SUBSTANCE: group of inventions relates to the field of radiolocation and can be used in surveillance radars. The result by the first independent item of the formula of the invention is achieved by that the offered method of determination of coordinates of the radio-frequency radiation source (RFRS) of the repeater jammer (RJ) is based on reception of the direct signal of RFRS and reflected from the target, measuring of time shift of these signals, measuring of angular coordinates of RFRS and the target, ranging the target by an active method and evaluation of the range up to RFRS, meanwhile RJ is used as RFRS, repeater jamming is induced by radiation of the sounding signal, the signals, matched with it and reflected by the purpose, are received from RJ. The named result by the second independent item of the formula is achieved by that the offered method of determination of coordinates of the targets irradiated by an external radio-frequency radiation source (RFRS) - repeater jammer (RJ) with its known coordinates, is based on reception of the signals direct from RFRS and reflected by the targets, measuring of time shift between them, measuring of angular coordinates of the targets, evaluation of range up to them, meanwhile RJ is used as RFRS, the repeater jamming is induced by radiation of the sounding signal with the level, sufficient for its detection, the signals, matched with it, are received from RJ and from angular directions n≥1 reflected by the targets, for clarification of RJ location in active mode the range is measured at least up to one of these targets, in case of its deviation from the calculated range RJ coordinates are clarified, on the basis of which the ranges to the targets are recalculated, the RJ location is clarified in case of detection of change of its angular coordinates.

EFFECT: ensuring of radar functioning in passive mode of area surveillance.

3 cl

FIELD: physics, navigation.

SUBSTANCE: group of inventions relates to radio engineering. The result is achieved by determining the time for issuing a command to launch and detonate protective ordnance once the radar station determines the time of emergence of signals at differential frequencies (N+4)Fdo=(N+4)2Vofn/C and MFdo=N2Vofn/C, when a target is located at distances (Do/Vo)[Vi+(N+4)Vo] and (Do/Vo)(Vi+NVo), respectively, from the transmit-receive antenna of the radar station, where N is a positive number, fn is the frequency of radiated chirp signal, Vo, Vi and C denote the velocities of the protective ordnance, the target and light, Do is distance selected based on the condition Do/Vo=fn/Fmfd, fd and Fm denote frequency deviation and modulation frequency of the chirp signal, and measuring the time interval t between the emergence of said signals, after which, in accordance with the duration of the measured time interval t, two values are selected from a set of predetermined values: Di=(Do/Vo)(Vi+NVo) - range and (Vi+Vp) - the sum of velocities, and calculating the ratio t1=Di/(Vi+Vp), where Vp is the real velocity of the protective ordnance which determines the time between the launch of the protective ordnance when the target is located at a distance (Do/Vo)(Vi+NVo) from the transmit-receive antenna of the radar station and the time of detonation of the ordnance when the ordnance is located at the prediction point - the point of collision with the target. The proximity fuse comprises: a transmit-receive antenna, a chirp signal transmitter, a mixer, a differential frequency filter, a narrow-band signal detector, a shift register, an AND element, a pulse counter delay element, a count pulse generator, a dividing circuit, two read-only memory devices and a timing relay.

EFFECT: reduced weight and size and cost of the proximity fuse owing to use of only one radar station.

2 cl, 1 dwg

FIELD: physics, navigation.

SUBSTANCE: invention relates to radar and systems for jamming a hostile radar station. The system comprises a receiving antenna aimed at the radar station, a radar signal amplifier, a multichannel transmitting antenna with radiators distributed on the front, and means of controlling radiation channels and pulse delay time, wherein the controlled delay line is connected between the amplifier and a channel switch, is multitapped and is equipped with a tap switch, wherein the number of the operating radiator(s) and the delay time are set by electronic switches from a control panel by an operator or through a program using a computer.

EFFECT: generating false targets on the screen of a hostile radar station, said targets moving on both the range and the azimuth, and preventing elimination the noise signal by forming a minimum in the beam pattern of the radar station.

1 dwg

FIELD: physics, navigation.

SUBSTANCE: invention relates to methods of jamming heterodyne-type short-range radar systems and can be used to design systems for active protection of objects from missiles and rockets equipped with short-range radar systems. The method of jamming heterodyne-type short-range radar systems involves determining the transmitter frequency of the short-range radar system and location thereof; analysing the obtained data with a computer and sending instructions to counteract the jamming the station, wherein the jamming station used is a monochromatic radiator, the signal frequency of which is set in the synchronisation band of the transmitter outside the frequency band of the receiver, and the power is selected higher than the power of the useful signal of the short-range radar system, thus tuning the transmitter of the short-range radar system to the frequency of the monochromatic radiation signal. Power consumed to jam the short-range radar system is about 15…20 times less than would have been consumed with direct jamming.

EFFECT: low power consumed when jamming a short-range radar system due to high antenna gain as a result of directed action on the transmitter of the short-range radar system and frequency-targeted jamming in form of a monochromatic signal.

3 dwg

FIELD: methods for protection of an active radar against antiradar missiles.

SUBSTANCE: in the method and device for protection of radar against antiradar missiles accomplished are radiation of sounding signals, detection of antiradar missiles, guidance of anti-aircraft missiles on the antiradar missile, destruction of the anti-radar missile by blasting of the warhead of the anti-aircraft missile, guidance of the anti-aircraft missile at least during a time period directly preceding the blasting of the warhead of the anti-aircraft missile, all this is conducted on the trajectory passing in the vicinity of the imaginary line connecting the antiradar missile and the radar, in this case constantly are determined the distance from the radar to the antiradar missile Dr-arm, from the radar to the anti-aircraft missile Dr-aacm and from the anti-aircraft missile to the antiradar missile Daacm-acm, and at the time moments leading the moments of radiation of the radar sounding signal by value t=(Dr-aacm+Daacm-arm-Dr-arm)/v, where v - velocity of light, commands are given from the radar to the anti-aircraft missile for radiation of a signal simulating the radar signal.

EFFECT: reduced dynamic errors of guidance of anti-aircraft missile on antiradar missile.

3 cl, 6 dwg

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